From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Concluding page of a specification document, noting a potential alteration to the speed range.
| Identifier | ExFiles\Box 40\2\ Scan052 | |
| Date | 3rd November 1924 guessed | |
| -2- This specification is now complete in every detail to the best of our present knowledge, though the speed range given in par (5) may be susceptible to alteration. Yours faithfully, FOR ROLLS-ROYCE LIMITED. | ||